vbl. sb. [f. FLUX v. + -ING1.]
1. The action of the vb. FLUX in various senses.
1659. Heylin, Animadv., in Fuller’s App. Inj. Innoc. (1840), 313. An ordinary purge being sufficient for the one, whereas the foul body of the other doth require a fluxing.
a. 1734. North, Lives (1826), 353. A certain cure [for the mange] was found out, which was fluxing with mercury.
1777. R. Watson, in Phil. Trans., LXVIII. 875. The smelters call every thing sulphur which is volatilized during the roasting or fluxing of an ore.
b. concr. = FLUX sb. 11.
1880. J. Lomas, Alkali Trade, 127. The amount of ‘fluxings’ should be kept as small as possible, and therefore care should be given to clear both bed thoroughly after every charge.
2. attrib. as fluxing-material; fluxing-bed, in the manufacture of soda, one of the two parts into which the sole of the furnace is divided.
1832. G. R. Porter, Porcelain & Gl., 264. The manufacture of flint glass requires the employment of a lower degree of heat than is necessary for the formationn of other descriptions, which do not contain an equal abundance of fluxing materials for vitrifying the sand.
